Emergency revert for pulling (#24923)

Revert "Pulling rework (#20906)"

This reverts commit 0d8254b2a2.

Content.Shared/Pulling/Events/BeingPulledAttemptEvent.cs

@@ -0,0 +1,17 @@
+namespace Content.Shared.Pulling.Events
+{
+    /// <summary>
+    ///     Directed event raised on the pulled to see if it can be pulled.
+    /// </summary>
+    public sealed class BeingPulledAttemptEvent : CancellableEntityEventArgs
+    {
+        public BeingPulledAttemptEvent(EntityUid puller, EntityUid pulled)
+        {
+            Puller = puller;
+            Pulled = pulled;
+        }
+
+        public EntityUid Puller { get; }
+        public EntityUid Pulled { get; }
+    }
+}

Content.Shared/Pulling/Events/PullAttemptEvent.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.Physics.Components;
+
+namespace Content.Shared.Physics.Pull
+{
+    public sealed class PullAttemptEvent : PullMessage
+    {
+        public PullAttemptEvent(PhysicsComponent puller, PhysicsComponent pulled) : base(puller, pulled) { }
+
+        public bool Cancelled { get; set; }
+    }
+}

Content.Shared/Pulling/Events/PullMessage.cs

@@ -0,0 +1,16 @@
+using Robust.Shared.Physics.Components;
+
+namespace Content.Shared.Physics.Pull
+{
+    public abstract class PullMessage : EntityEventArgs
+    {
+        public readonly PhysicsComponent Puller;
+        public readonly PhysicsComponent Pulled;
+
+        protected PullMessage(PhysicsComponent puller, PhysicsComponent pulled)
+        {
+            Puller = puller;
+            Pulled = pulled;
+        }
+    }
+}

Content.Shared/Pulling/Events/PullStartedMessage.cs

@@ -0,0 +1,12 @@
+using Robust.Shared.Physics.Components;
+
+namespace Content.Shared.Physics.Pull
+{
+    public sealed class PullStartedMessage : PullMessage
+    {
+        public PullStartedMessage(PhysicsComponent puller, PhysicsComponent pulled) :
+            base(puller, pulled)
+        {
+        }
+    }
+}

Content.Shared/Pulling/Events/PullStoppedMessage.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.Physics.Components;
+
+namespace Content.Shared.Physics.Pull
+{
+    public sealed class PullStoppedMessage : PullMessage
+    {
+        public PullStoppedMessage(PhysicsComponent puller, PhysicsComponent pulled) : base(puller, pulled)
+        {
+        }
+    }
+}

Content.Shared/Pulling/Events/StartPullAttemptEvent.cs

@@ -0,0 +1,17 @@
+namespace Content.Shared.Pulling.Events
+{
+    /// <summary>
+    ///     Directed event raised on the puller to see if it can start pulling something.
+    /// </summary>
+    public sealed class StartPullAttemptEvent : CancellableEntityEventArgs
+    {
+        public StartPullAttemptEvent(EntityUid puller, EntityUid pulled)
+        {
+            Puller = puller;
+            Pulled = pulled;
+        }
+
+        public EntityUid Puller { get; }
+        public EntityUid Pulled { get; }
+    }
+}